WO2004090704A1 - Dispositif pour l'entree d'information de caractere, procede et application - Google Patents

Dispositif pour l'entree d'information de caractere, procede et application Download PDF

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Publication number
WO2004090704A1
WO2004090704A1 PCT/CN2004/000242 CN2004000242W WO2004090704A1 WO 2004090704 A1 WO2004090704 A1 WO 2004090704A1 CN 2004000242 W CN2004000242 W CN 2004000242W WO 2004090704 A1 WO2004090704 A1 WO 2004090704A1
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WO
WIPO (PCT)
Prior art keywords
touch
key
force
coordinates
reference point
Prior art date
Application number
PCT/CN2004/000242
Other languages
English (en)
Chinese (zh)
Inventor
Erzhong Liu
Original Assignee
Erzhong Liu
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Erzhong Liu filed Critical Erzhong Liu
Publication of WO2004090704A1 publication Critical patent/WO2004090704A1/fr

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1626—Constructional details or arrangements for portable computers with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1662—Details related to the integrated keyboard
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
    • G06F3/0202—Constructional details or processes of manufacture of the input device
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
    • G06F3/023—Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes
    • G06F3/0233—Character input methods
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/23—Construction or mounting of dials or of equivalent devices; Means for facilitating the use thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2250/00—Details of telephonic subscriber devices
    • H04M2250/22—Details of telephonic subscriber devices including a touch pad, a touch sensor or a touch detector

Definitions

  • the present invention relates to a device, a method, and an application having information input functions such as characters for devices such as a microcomputer, a handheld telephone, and a keyboard.
  • the prior art information input devices are mainly keyboards, touch screens, etc.
  • these devices are too bulky, in order to avoid misoperation (when inputting touch pressure, the other keys or touch bits are mistakenly Press) and reduce the requirements for the accuracy of finger keystrokes, the sum of the distance between the center of each key or touch position (key position) and the edges of the keys or touch positions on both sides must be greater than or even significantly greater than the width of the end of the finger.
  • Input devices with more keys or touch positions (such as the popular notebook computers and standard keyboards) are difficult to reduce in width. If the number of keys or touch positions (key positions) is significantly reduced, multi-use of one key will increase the complexity of the operation. And reduce the input speed (such as existing small notebook computers, mobile phones and PAD, etc.); there are also pocket input devices that use input pens, but the input is slow, and it also increases the trouble of carrying and holding the pen.
  • the purpose of the present invention is to propose a new solution, which can avoid the problem that the pitch of the original keyboard keys or touch positions (key positions) is restricted by the width of the finger and cannot be significantly reduced, so as to achieve multiple keys or multiple touch positions (key positions). Miniaturization of input devices or electronic devices with such devices. This is explained in detail below.
  • the invention is a device with information input functions such as characters, which is composed of a casing, a touchpad on the casing that accepts a touch of a touch object to input information, and a corresponding signal line part;
  • a number of the supporting parts or their supporting parts or touch pads are supported (or are themselves) with a stress (strain) sensor or sensitive element; the sensors or sensitive elements are capable of being touched when the touch pad is touched
  • a sensor or a sensitive element that provides a signal that reflects a continuous number of changes in the stress on the location or component can be connected to the signal processing portion of the signal line portion of the device or the signal processing portion of another external device.
  • the signal processing portion can be connected by Process the measured quantity or proportion of the stress signal received by the supporting part or component, determine the position of the touch force acting on the touch pad, calculate the coordinates, or the information represented by the character, etc.
  • the surface of the touchpad has a key position in different specific areas that are touched by a touch object in order to input different characters respectively (a specific area is hereinafter referred to as a key position, and the combined point of the touch force is located in a certain key position, and the device can input a certain corresponding Characters), where several keys (or key groups) are raised, the highest part of the raised part is higher than the surface at or near the boundary with the adjacent key (or key group), or phase Adjacent bonds (or groups of bonds) have recesses formed between the surfaces.
  • Several key positions of the touch pad can be marked by corresponding character graphics of characters that can be input.
  • the touch panel of the device may be a lightweight rigid rectangular plate or a rectangular plate with a rigid bottom plate.
  • Each of the four corners may have a support member with a stress (strain) sensing element or a sensitive element, or one each.
  • Supporting stress (strain) sensor or sensitive element The stress (strain) sensor or sensitive element of the device may be a resistive or capacitive or inductive or electromotive force or photoelectric sensor or sensitive element.
  • the touch panel when the touch panel is subjected to a touch force, it is the position of the combined touch point that determines the proportion of the stress on each support part or support component, regardless of the size of the contact surface. Therefore, if the signal is processed, the judgment result can only be It is the position of the contact point of the resultant force of the touch, so even if the key positions are very small and close, the device can be distinguished, and it is not easy to enter by mistake.
  • the raised key position can also make the user directly feel whether the position of the finger is accurate, which is conducive to adjusting the direction of the click and then obviously improve the feel and greatly improve the accuracy and speed of operation.
  • the top of the key raised portion of the touch panel described in this device may be flat or with a concave or character-like surface or with a patterned or grid-like or dot-like rough surface or a different shape. This can further improve the feel and improve the tactile discrimination effect.
  • the surface layer or the inner layer or the lower layer or some parts of the touch pad or key position described in this device may be provided with elastic materials or elastic elements. In this way, a moderate sinking can be felt when a finger is struck, which is convenient for controlling the strength, and improves the comfort of movement, and greatly improves the working conditions and efficiency of typing or input.
  • the touch pad of the device may have a smooth surface suitable for a sliding touch of a touch object. In this way, more input methods can be used.
  • the cursor can be controlled or handwriting input can be performed.
  • the program can be appropriately arranged.
  • the touch pressure is small, only the cursor or stroke is displayed on the display screen.
  • the touch pressure reaches a certain value, it means that the click on the cursor or the character or word is completed, and the input character or word can be recognized.
  • the signal line part of the device may include:
  • a signal data acquisition section for acquiring measurement values of each stress sensor, and a data processing section, 'for each stress sensor obtained according to the signal data acquisition section The measured values of the device and the positions or coordinates of each stress sensor calculate the force position or the calculated coordinates of the force acting point of the touchpad, and determine the characters or information to be inputted accordingly.
  • the position of the touch point can be determined by using the mechanical principle of balance between the force and moment of the touchpad, and the supports can be calculated according to the distribution position or coordinates of the support parts of the touchpad and the stress value (ie, the support force value) measured by each sensor element.
  • Location support force may also include the gravity of the touchpad itself
  • This calculation method can be implemented by the data processing section or the processor according to an appropriate program.
  • the output characteristics of the stress sensor, the shape of the touch panel, the support part or the component, or the mechanical characteristics may change during the production or use process, which affects the accuracy of key position input, it may need to be corrected or adjusted.
  • the device may be provided with keys or knobs or key positions capable of performing correction or adjustment function operations.
  • the device is started and operated Correct the program or use it to adjust the signal from the stress sensor or signal measurement section.
  • the device may also be provided with other keys or a keyboard or a touch pad or non-convex keys.
  • the device has an acoustic signal or an optical signal generator or a tactile climbing generator to prompt or express or reflect the magnitude of the touch force received by the touchpad or the different key positions or input information received.
  • the device may use an internal or external data processing part to calculate the sum of the stresses (that is, the touch force) of the support parts or the sum of the measured values of the sensors or sensitive elements at any time.
  • the value or the touch force is at In certain predetermined ranges, different information or instructions or characters can be input, and the above signal generator can emit acoustic or optical signals or vibration signals.
  • the touch force when the touch force is very small, only characters may be displayed. When the touch force is larger, characters may be input. When the touch force is greater, uppercase characters or another character or instruction or information sharing the same key position may be input.
  • the device may have a signal processing section connected to the signal measurement section and an interface line for transmitting information such as characters to an external computer or other equipment.
  • the device may be provided with liquid crystal or other types of displays, as well as microprocessors, memories, interfaces, and other micro or portable or handheld computers or data processing devices required by the circuit and components.
  • the device may also have a micro-display, radio transmitting and receiving antennas, receiving and transmitting elements and lines, microprocessors, memories, pickups, speakers, batteries and other components and lines required for a portable telephone or portable communication device.
  • An external keyboard, a notebook computer, a personal digital assistant, a mobile phone, a cordless phone, and a remote controller including or applying the device with a character information input function of the present invention.
  • the output characteristics of the stress sensor or sensing element are not strictly linear and may drift, and the deformation of the touch pad or other mechanical parts may increase the drift, the calculation of the position of the touch point often includes very complicated corrections. This kind of drift occurs during use, and it will cause input errors, and even related technologies cannot be solved in a reasonable way.
  • method I proposes a method with a character input function (referred to as method I), including:
  • a signal data acquisition section is provided for acquiring measurement values of each stress sensor when the touch panel is touched, and a data processing section is provided for measuring values of each stress sensor obtained according to the signal data acquisition section and The position or coordinate of each stress sensor calculates the resultant force of each supporting force (the touchpad gravity can be considered).
  • the calculated coordinate is the calculated force of the touch force corresponding to the position of the point of touch force that is balanced.
  • the measured contact force calculation coordinates can be used instead of the design calculation coordinates to be included in the key reference point calculation coordinate storage table, or the later measured contact force calculation coordinates can be used instead.
  • the original measured contact force calculation coordinates are included in the key reference point calculation coordinate storage table.
  • the key point reference points may be subjected to different touch pressures according to the above method.
  • the calculated coordinate list obtained by one is stored,
  • the key reference point described in part (iii) of method I may also be a point located at the center of the key position, or the midpoint or endpoint or inflection point of the key boundary or delimitation line segment, or Specific marked points.
  • part (V) of method I when the touchpad is touched, calculate the coordinates according to part (ii) according to the touch force corresponding to the touch point, and calculate the coordinates with the reference points of the key positions of the storage table.
  • the comparison judgment can also be made in one of the following ways:
  • the comparison and judgment in (V) refers to: Finding the distance from the reference point calculation coordinate of the reference point calculation coordinate storage table to the touch point calculation coordinate distance of the touch point The closest (the sum of the absolute value of the coordinate difference or the smallest coordinate mean square error), the key position where the reference point is located is the key position where the touch point is located,
  • the comparison and judgment described in (V) refers to: finding the location of the reference point from the calculated coordinates of the reference point in the storage
  • the touch force calculation coordinate of the touch point is upper left or lower left or upper right or lower right and is closest to the touch force calculation coordinate of the touch point.
  • the key position of the reference point or the reference point is lower right or upper right or lower left or upper left side. Touch the key where the point is located.
  • the key position of the reference point or the right or left or bottom or upper side of the reference point is the key position immediately, that is, the key position of the touch point
  • the positions of several different reference points that are closest to or closer to the coordinates of the touch point (calculated coordinates) or the relative positions of the touch point and the latter can also be used to calculate or determine the key position.
  • the characters or information or instructions they represent can also be used to calculate or determine the key position.
  • Method III a method for inputting different specific information or instructions or characters using different maximum values of the touch force per touch (Method III) may be provided, including-specifying that each key position of the touchpad is subject to each touch When the maximum touch force (or single click touch force peak) is in several different ranges, different specific information or instructions or characters should be entered.
  • the processor or signal processing section not only determines the time
  • the key position of the touch action point also determines or first determines the touch force of the touch (corresponds to the sum of the support force of the support parts of the touchpad minus the touchpad gravity).
  • the maximum value or the range of the peak force of a single click Determine the input information or instructions or characters corresponding to the touch according to the touched key position and the range of the maximum touch force according to the relevant regulations above
  • the user is prompted in one or more of the following ways:
  • optical signal device that uses it to emit light or displays of different colors or brightness or graphics
  • Method III is a further development of method I, which can use the peak value of the keystroke strength (single-time maximum value) to enter different characters in the same key position (such as mobile phone number or text, uppercase letters or lowercase letters, etc.) , Or distinguish whether it is working, displaying, entering or whether it is in the state of correction or adjustment or distinguishing other information.
  • peak value of the keystroke strength single-time maximum value
  • the present invention also provides an operator for correcting or adjusting the key position reference point of the storage table to calculate coordinates.
  • Method (Method IV) including:
  • the invention also provides a method (method 11) with a character input function, including:
  • optical signal device which uses it to emit light or display of different colors or different brightness or different graphics
  • the instantaneous peak value of the touch force value refers to the highest value of the touch force generally fluctuating within a time interval of 0.02 to 1 second.
  • Method II is another significant improvement of the present invention. It can be used to input more than two different types of information or instructions or characters at the same position on the touchpad. If the touch force is too small, it will not be displayed, and when the touch force is small, the characters or strokes are only on the display. It is displayed that the character is really input only when the force is large (this can avoid the misoperation of the micro keyboard); for example, when the handwriting input on the smooth surface of the touchpad is described, the instantaneous peak of the force of the touching object is large enough to instruct the processing The character has been written, and the recognition process can begin.
  • This method can use the difference in instantaneous peak power to input uppercase or lowercase letters respectively, and it can also distinguish whether the cursor moves or clicks the cursor (the instantaneous peak reaches a certain level to indicate click Cursor), or you can use the specified force to instruct the relevant device or system to enter the calibration or adjustment working state.
  • the above method I and method II are both applicable to a touch pad with a protrusion corresponding to a key position on the surface, and a touch pad having no protrusion on a surface key position.
  • the present invention uses the principle of judging the position of the combined force point of the touch contact surface according to the ratio of the stresses on several support parts or components, so the position of the combined force point is determined regardless of the size and shape of the contact surface.
  • the input resolution is extremely high, allowing the characters on the touchpad to be densely distributed without being restricted by the width of the finger.
  • the main part of the key of the present invention is at or near the boundary of the key.
  • the invention also provides a convenient, effective and reliable method for determining the position of the touch point and the input character and a related correction and adjustment method to avoid or The potential adverse effects of stress sensor output drift and mechanical deformation are eliminated; the method for distinguishing different input information corresponding to a touch at the same position according to the difference in touch force or single maximum value or instantaneous peak value is very helpful to simplify the keyboard and operation method.
  • the technology of the present invention is simpler than the prior art, uses only a few sensors, is more suitable for miniaturization and reduces costs, and has a very prominent effect.
  • FIG. 1 is an enlarged partial cross-sectional view of Embodiment 1 of a device with a character input function according to the present invention.
  • FIG. 2 is a schematic diagram of the appearance of Embodiment 2 of the device with a character input function of the present invention
  • FIG. 3 is a schematic diagram of the appearance of Embodiment 3 of the device with a character input function of the present invention
  • FIG. 4 is a schematic diagram of the appearance of Embodiment 4 of the device with a character input function according to the present invention.
  • 1, is the shell
  • 2, is the touch pad
  • 3, is the corresponding graphic of the character
  • 4, is the support part
  • 5, is the support part
  • 6, is the stress and strain
  • sensor 7, is the smooth surface
  • 9, is a calibration button
  • 10, is a display light
  • 11, is an audio port
  • 12, is an external cable
  • 13 is a display
  • 14, is an antenna
  • 15, is an earphone hole
  • 16, is corresponding to a key position Bulge.
  • Fig. 5 is a schematic diagram showing an example of distribution of each supporting force and resultant force
  • F 2 , F 3 , F 4 , XL yi, x 2 , y 2 , x 3 , y 3 , and x 4 y 4 are the coordinates of each supporting force and its point of action, respectively.
  • F s , x s , and y s are The resultant force and the coordinates of its point of application.
  • Figure 6 is a block diagram of the circuit of the devices of Examples 1 and 2.
  • 21 is a stress sensor
  • 22 is a multiplex transmission conversion
  • 23 is an A / D conversion
  • 24 is an interface
  • 28, is a switch
  • 25, is a microprocessor and a memory
  • 26, is a display
  • 27, Are other devices, where the left side of the dotted line is the signal measurement portion, and the right side of the dotted line is the signal processing portion.
  • Figure ⁇ shows a working flowchart based on the method I, method II, method III and method IV, where step 31 is to enter the adjustment state, step 32 is to display the corresponding reference point symbol and open the storage address, step 33 is to press the reference point, step 34 is for measuring and calculating touch force values and coordinates, step 35 is for designing calculation coordinates, step 36 is for storing reference point calculation coordinates in a list; step 41 is for starting up, step 42 is for touch and click, step 43 is for inputting detection signals and registering, step 44 To calculate the touch force and coordinates, step 45 is to determine the key position, step 46 is no, and step 47 is to compare with the stored coordinates To determine the key position, step 48 is to determine the character or instruction or point.
  • Embodiment 1 is a miniature external input keyboard for a microcomputer or the like of the present utility model.
  • the surface of the touchpad 2 on the upper surface of the thin housing 1 is marked with various characters 3 and corresponding key positions (not all marked in Figure 1).
  • the central body of most of these keys is raised and contains an elastic material.
  • the touch pad is rectangular and is supported by four support members 5 with capacitive stress sensors 6 under each corner through the support portion 4.
  • the stress signals generated by the four stress sensors are processed by a signal processing section inside the housing, which can be based on the sum of the stresses on the upper left and lower left corners and the upper right and lower right two
  • the ratio of the sum of the stresses of the corners determines the lateral position of the point of application of the touch force
  • the ratio of the sum of the stresses of the upper left and upper right corners to the sum of the stresses of the lower left and lower right corners determines the effect of the touch force
  • the vertical position of the dot and determine the character or information to be input.
  • the character or information signal will be transmitted to the external host through the interface circuit and the external cable 12.
  • the display lamp 10 When the (sum of the four angular stresses) reaches or exceeds the effective value or input value, the display lamp 10 will emit light, and the acoustic signal generator will sound through the sound port 11.
  • the device can display or input the character judged at this time.
  • This input keyboard is provided with a button 8 such as a switch and a calibration button 9 and a calibration program.
  • the signal processing section When the center reference point of a key position is pressed accurately and the calibration button is pressed simultaneously, the signal processing section will store the key center reference point according to the program. At this time, the measured position or calculated coordinates are used to compare, modify or replace the previously stored position or calculated coordinates. In this way, even if the measurement signal of the relevant sensor has a small deviation, the normal operation of the device can be guaranteed.
  • the input keyboard has a smooth surface 7 at the lower left position of the touchpad. You can slide your fingertip on it to move the cursor or write input. According to Method II, you can specify that when the fingertip pressure instantly increases to a certain level, it means clicking The cursor or the character (word or word) can be recognized and displayed by the software after writing.
  • Embodiment 2 is a pocket computer (as shown in FIG. 2) of the device of the present utility model.
  • the touch panel 2 is miniature and has various character keys 3 marked on it. Part), and also includes a signal measurement part and a signal processing part similar to Embodiment 1, as well as devices and circuits such as a liquid crystal display 13, a microprocessor, a memory, an interface, and several function buttons 8, a calibration button 9, and a display lamp 10 And audio port.
  • the computer is smaller than an ordinary book, and the number of input keys on the touchpad is up to 60.
  • the difference in finger pressure can be used to display or input certain uppercase or lowercase letters by pressing on the same key position, or Two or three different characters or instructions, suitable for one-handed operation, Easy to carry.
  • Embodiment 3 of the device of the present invention is another pocket computer (as shown in FIG. 3), the structure and function of which are similar to those of Embodiment 2, but the touchpad 2 used for input is close to a right-angled triangle (there are gaps on the hypotenuse), The three support members with sensors are located near the three corner ends. Its touchpad has 80 character graphics and a smooth surface (not shown on Figure 3).
  • Embodiment 4 of the device of the present invention is a compact handheld telephone (as shown in FIG. 4), which is provided with a miniature touchpad 2, a liquid crystal display 13, a button, an antenna 14, a receiver, a microphone, and a required receiving and transmitting element or line.
  • Microprocessor, memory, battery, etc. in addition to the keys on the touchpad surface are marked with larger and more prominent Arabic numerals, they are also marked with letters and other text input symbols and operating symbols, without the need for multiple characters to share a touch Location, so it ’s very convenient to use the phone to send text messages or go to the Internet. . ''
  • the above devices and methods need to determine the position of the touch point, that is, the calculated coordinates, according to the signals of the stress sensors. A specific way is described below:
  • the X-axis Y-axis is set in the geometric plane where the touchpad is located, and the coordinates Xl , yi , x 2 of the supporting points F t , F 2 , F 3 , and F 4 are determined according to the positions of the supporting parts. , Y 2 , x 3 , y 3 , x 4 , y 4 , and then according to the sum of the moments of the supporting forces relative to the ⁇ axis (? 1 ⁇ +?
  • F s Ys Fi y x + F 2 y 2 + F 3 y 3 + F 4 y 4 ;
  • the touchpad is miniature and lightweight. Regardless of its weight, the coordinate of the above combined force point is the touch point coordinate. When there are less than or more than four support sites, similar calculations can still be performed.
  • the force or coordinate is not necessarily a mechanical value or a geometric value, and may be a corresponding signal or data.
  • the left part of the dotted line in the circuit block diagram of FIG. 6 is suitable for the circuit of Embodiment 1, and the block diagram of FIG. 6 is generally suitable for the circuit of Embodiment 2.
  • FIG. 7 The work flow of FIG. 7 is also applicable to the apparatuses of the foregoing embodiments.
  • the right side represents the adjustment or proofreading workflow of the above-mentioned device before or during shipment.
  • Method II may or may not include this part of the process:
  • the relevant parameters can be calculated according to the design parameters before leaving the factory.
  • the calculated coordinates of the reference point 35 are stored; generally, the device or system is brought into the adjustment state by adjusting the button first, so that the display shows the symbol to be adjusted, the relevant storage address is opened, and then the reference point on the touchpad to be adjusted is pressed At this time, the processor will use the stress sensor signal measurement to calculate the range of the touch force value and calculate the coordinates of the reference point, and include them in the reference point calculation coordinate storage table for future use.
  • the left side of Figure 7 is the information input workflow: After powering on, click the touchpad, input and register the sensor measurement signal or maximum value, and then calculate the touch force value or maximum value and the touch force calculation coordinates. If the touch is not In order to determine the key position, but to enter a figure or move the cursor, step 46 directly proceeds to step 48 to determine the input information, otherwise proceeds to step 47, and compares the calculated coordinates with the reference point stored in the list in step 36 to determine the key where the touch is located. Bits to further determine the characters or information or instructions entered. '
  • Embodiment 5 of the device of the present invention is a miniature telephone that can be worn on the wrist, which is similar to Embodiment 4, but has a much smaller volume.
  • the casing of the device is provided with a wristband or a rack or rod connected to the wristband or other Structure or element
  • Embodiment 6 of the device of the present invention is a miniature telephone that can be worn around the neck, and the casing is provided with a necklace or a collar, or a ring or a hole or other connection structure or element '.
  • the present invention utilizes a touch pad with raised key positions, an input device of corresponding signal lines, and a corresponding method, which can supplement or replace the existing keyboard input technology, and is more conducive to miniaturization of devices such as keyboards, mobile phones, notebook computers, and PDAs. , Can be widely used in the production and use of various products mentioned above.

Abstract

L'invention concerne un dispositif pour l'entrée d'information de caractère, un procédé et une application connexes, pour PC, téléphone mobile et autre. Il s'agit de supprimer l'inconvénient de la taille trop importante d'un dispositif de ce type, avec trop peu de touches. Le dispositif considéré comprend une enceinte, un écran tactile à pavés concaves pour l'entrée, et un circuit de signaux correspondants, entre autres. L'écran tactile est soutenu par des unités ou accès supports, avec un capteur de pression tactile ou élément sensible, fournissant un signal de modification de changement de pression tactile sur l'écran. Une unité de traitement de signaux traite le signal pour identifier l'information de caractère propre à la position de point d'appui sur l'écran et à la pression correspondante. Grâce au procédé et au dispositif décrits, on peut avoir une répartition dense des pavés sur l'écran tactile, ce qui permet de réduire au minimum la taille du dispositif, et d'améliorer le confort et l'efficacité de l'entrée, tout en réduisant les coûts.
PCT/CN2004/000242 2003-03-27 2004-03-24 Dispositif pour l'entree d'information de caractere, procede et application WO2004090704A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN03121386 2003-03-27
CN03121386.3 2003-03-27
CN03153792.8 2003-08-21
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CN100412769C (zh) * 2005-04-26 2008-08-20 佛山市顺德区顺达电脑厂有限公司 触碰式面板的校正方法
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CN101770298B (zh) * 2008-12-30 2012-06-06 北京联想软件有限公司 输入装置及输入方法
CN103197741B (zh) * 2012-03-26 2018-04-24 孟庆剑 手持式计算、通信一体机
CN103677352A (zh) * 2012-08-31 2014-03-26 汤耀宗 触压感应模块
CN103837216B (zh) * 2014-03-20 2016-06-29 可瑞尔科技(扬州)有限公司 利用传感器受力来实现按键功能的称重装置
CN106354321A (zh) * 2016-09-05 2017-01-25 芯海科技（深圳）股份有限公司 一种压感式按键识别方法

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US7719520B2 (en) 2005-08-18 2010-05-18 Scenera Technologies, Llc Systems and methods for processing data entered using an eye-tracking system
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CN112083821A (zh) * 2019-11-29 2020-12-15 深圳市汇创达科技股份有限公司 一种基于电阻式应变规传感方式的指向装置的控制方法
CN112083821B (zh) * 2019-11-29 2024-02-20 深圳市汇创达科技股份有限公司 一种基于电阻式应变规传感方式的指向装置的控制方法

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